(2). Consider the LP below. The BFS ("corners") are (0,0) (0.4) (1,4) (3,2) (3,0). The optimal solution is at 13 and 2 = 2. max =2x1+x2 s.t. 21+22 5 21 3 22 4 1,2 0 (a). What is the range of c the objective coefficient of 21 (currently 2) for which this BFS remains optimal: (b). What is the range of b the right hand side of the second constraint (currently 3) for which this BFS remains optimal: (c). What is the dual price of the second constraint?